ML18053A487

Proposed Tech Specs Modifying Permissible Bypass Condition for Subcooling Margin Monitor & Adding Operation & Surveillance Requirements for Reactor Vessel Level Monitoring Sys

ML18053A487
Person / Time
Site:	Palisades
Issue date:	08/04/1988
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18053A486	List: ML18053A485 ML18053A487
References
NUDOCS 8808160357
Download: ML18053A487 (4)

Text

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ATTACHMENT Consumers Power Company P,,,/,s~ **@

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I Plant 8808160357 880804 PDR ADOCK 05000255 1

P PDC MI0788-0075-NL02 DocketS~

August 4, 1988 3 Pages

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No

8.

9.

10.

11.

12.

13.

14.

15.

16.

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Functional Unit Pressurizer Water Level (LI-0102)

Pressurizer Code Safety Relief Valves Position Indication (Acoustic Monitor or Temperature Indication)

Power Operated Relief Valves (Acoustic Monitor or Temperature Indication)_

PORV Isolation Valves Position Indication Subcooling Margin Monitor Auxiliary Feed Flow Rate Indication Auxiliary Feedwater Actuation System Sensor Channels Auxiliary Feedwater Actuation System Actuation Channels Excore Detector Reactor Vessel Water Level MI0788-0075-NL02 Table 3.17.4 (Cont'd)

Minimum Operable Channels 2

1 per Valve 1 per Valve 1 per Valve 1

Minimum Degree of Redundancy 1

None None None None 1 per flow(h)

None Control Valve 2 per stefm generator e) 2(i,j,k,l) 3-Bla 1

1 None None Permissible Bypass Conditions Not required in Cold or Refuel-ing Shutdown Not Required below 325°F Not required when PORV isolation valve.

is closed and its indication system is operable Not required when reactor is depressurized and vented through a vent 2:1. 3 sq. in.

Not required below 325°F Not required below 325°F Not required below 325°F Not required below 325 °F _

None Not required below 325°F Amendment No.

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Table 3.17.4 (Cont'd)

(e)

Auxiliary Feedwater System Actuation System Sensor Channels contain pump auto initiation circuitry. If two sensor channels for one steam generator are inoperable, one-of the steam generator low level bistable modules in one of the inoperable channels must be in the tripped condition.

(f)

With one Auxiliary Feedwater Actuation System Actuation Channel inoperable, in lieu of the requirement of 3.17.2, provide a second licensed operator in the control room within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

With both inoperable, in lieu of following the requirements of 3.17.2, start and maintain in operation the turbine driven auxiliary feed pump.

(g)

Calculate the Quadrant Power Tilt using the excore readings at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the excore detectors deviation alarms are inoperable.

(h)

With two flow rate indicators inoperable for a given control valve, the co~trol valve shall be considered inoperable and the requirements of 3.5.2(e) apply.

(i)

(j)

(k)

(1)

A level channel consists of eight sensors in a probe.

A channel is OPERABLE if four or more sensors, two or more of the upp~r four and two or more of the lower four, are OPERABLE.

There are two channels.

With the number of OPERABLE Channels one less than the minimum channels operable requirement, in lieu of the requirement of 3.17.2, either restore the system to OPERABLE status within 7 days, if repairs are feasible without shutting down, or prepare and submit a Special Report to the Connnission within 30 days, following the event, outlining the action taken, the cause of the inoperability and the plans and schedule _for restoring the systems to OPERABLE status.

With both channels inoperable, in lieu of the requirement of 3.17.2, either restore the inoperable channel(s) to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> if repairs are feasible without shutting down or:

1.

2.

3.

Initiate an alternate method of monitoring the reactor vessel inventory; and Prepare and submit a Special Report to the Connnission within 30 days following the event outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status; and Restore the system to OPERABLE status at the next scheduled refueling.

The provisions of Specification 3.0.4 are not applicable.

3-8lb Amendment No.

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MI0788-0075-NL02 I

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Channel Description *

15.

Auxiliary Feed Pump Flow Indication

16. Auxiliary Feed Pump Start

17.

Power Operated Relief Valves and Pressurizer Code Safety Relief Valve.s Position Indication

a.

Temperature

b.

Acoustic Monitor

18.

Subcooling Margin Monitor Surveillance Function

a.

Calibrate

a.

Test

b.

Calibrate

a.

Calibrate

b.

Check

a.

Calibrate

a.

Check

b.

Calibrate TABLE 4.1.3 (Contd)

Frequency R

M (3)(5)

R R

s R

s R

Surveillance-Method

a.

Known Differential Pressure Applied to Sensors

a.

Switch

b.

Known Differential Pressure Applied to Sensors a~

Known Resistance Substitute for RTD

b.

Comparison of Channels

a.

Inject Calibrated Test Signal

a.

Comparison of Channels

b.

Known Resistance Substituted for RTD Coincident With Known Pressure Input (4)

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Reactor Vessel Water Level

a.

Check M

R

a.

Comparison of readings from redundant channels I

b.

Calibrate

b.

Substitute known voltage for thermocouples, and I

increase heater current to heated junction

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thermocouples and observe proper response.

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(3) Test method to be alternated to include starting auxiliary f eedwater pump from the control room hand switch, from the breaker (or alternate steam supply) and from the pump test-key switch in a three month period.

(4) In conjunction with item 4(b), Table 4.1.1.

(5) It is not necessary to perform the specified testing during the cold shutdown condition.

Amendment No.

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4-lla MI0788-0075-NL02